This work surveys biometric based authentication systems that deploy mouse movements. Typically, timing and movement direction, along with clicking actions are used to build a profile of a user, which is then used for authentication purposes. Most system relies on a continuous monitoring process, or require the user to interact with a program (such as a game) in order to derive sufficient statistical information regarding their mouse dynamics. In this work, a novel graphical authentication system dubbed Mouse-lock is presented. This system deploys the analogy of a safe, and the password is entered via the mouse in a graphical equivalent of combination lock. The question is whether this approach elicits sufficient discriminatory information from a relatively minimalist degree of interaction from the user. The preliminary results from a study with six subjects indicates, based on FAR/FRR values, that this is a viable approach.